package com.zzxy.spring12.factory;

import com.zzxy.spring12.aspect.MyAspect;
import com.zzxy.spring12.service.IStudentService;
import com.zzxy.spring12.service.impl.StudentServiceImpl;

import java.lang.reflect.InvocationHandler;
import java.lang.reflect.Method;
import java.lang.reflect.Proxy;

public class MyBeanFactory {
    public static IStudentService createStudebtService(){
        //1target class
        StudentServiceImpl studentServiceImpl =new StudentServiceImpl();
        //2 advise
        MyAspect myAspect=new MyAspect();
        //3 weaving
        IStudentService studentServiceProxy=(IStudentService)Proxy.newProxyInstance(MyBeanFactory.class.getClassLoader(), studentServiceImpl.getClass().getInterfaces(), new InvocationHandler() {
            @Override
            public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
                myAspect.before();

                Object obj=method.invoke(studentServiceImpl,args);
                myAspect.after();
                return obj;
            }
        });
        return studentServiceProxy;
    }


}
